Ditcher having slid able boom supported



Apr! 26, 1955 M. c WILLS ETAL Re. 23,989

DITCHER HAVING SLIDABLE BOOM SUPPORTED BUCKET CONTROL MEANS Original Filed April 14, 1952 INVENIO .5. Mar/b1? WW Wqyne //5 United States Patent Ofiicc Roan-Ja as, 1988 DITCHER HAVING SLIDABLE BOOM SUPPORTED BUCKET CONTROL LlEANS Marion C.WlllsandWayne awnarmmlnm' laldDorklns to -E. Dorklns, Ottawa, Km; said Marlon C. Wills and Wayne I. Wills No. amps-mum ra 16, 54, No. mess, April 14, 1952. Applies Deeemher 1, 1954, Serial No. 413,112

3 Claims. ensu -13a I madebyrellsue.

This invention relates to improvements in-earth-handling equipment, and has for its primary ob ect to improve upon the ditching attachment for tractors, form ngthe subject matter of our co-pendmg applicat on, Serial No. 195,928, filed November 16, 1950, being a continuation-in-part of said co-pendmg application.

It is the primary object of this invention to provide a ditching machine including a boom upon which is swingably mounted an earth-handling bucket or dipper, there being included within the concepts h eof, novel means for imparting swinging movement to e bucket and mcluding a slide mounted upon theboom itself.

Another important object of this mventlon IS to provide actuating means for swingable buckets forming a part of ditching machines or other handling equipment having tremendous power and being sub ect to little wear or other operating difficulties, and consisting of a member reciprocable longitudinally of the boom itself and operably connected with the swinging bucket through pivotal linkage.

A still further object of this invention 18 to prov de bucket-control means as just above set'forth, including hydraulic mechanism for sliding the control member Ion-- gitudinally of the boom upon which it is mounted, the

hydraulic means being disposed so as to impart thrust and pulling energy upon the slide member without part swinging movement to all parts hereinafter to be described, through substantially a 180 degree are. Hy-

draulic means, not herein illustrated, rably interconnects the member 16 and the frame 2 for imparting such swinging movement. V The rotative tubular member 16 carries an elongated boom 18, by pivotal connection 28, swinging movement of boom 18 on thevhorizontal axis 28, being acco liahed by means' of an hydraulic cylinder 22 a ubleacting rectprocable piston therein. Cylinder 22 is pivotally to the rotative member 16 by means of a pivot pin 24. 'Ijhe piston within cylinder 22 has gated stem 26 pivotally joined to the boom 18 intermedi-, ate the ends 0 the latter -by a pivot pin 28. A bracket if on the outeruzu'sst rom pivot point consists of a air of ac'ed plates not herein illustrated, beta r een wm' a dipper arm 32. The uppermost end of the dipper 32 is pivotally secured to the bracket 38 by a bolt or the like 34. Swingable arm 32 has a bucket or per 36 secured to the lowermost end thereof preferaby by a utilization of a link 40 connecting the bucket 36 and the arm 32 intermediate the ends thereof by means of a bracket 42. A plurality of openings 44 in the bracket 42 permitad ustment of the link 40. Such is the means disclosed to our co-pending application above identified.

Alternate means for so adjusting the bucket 36 with respect to arm 32, are disclosed in our eo-pen cations filed on even date herewith and entitled Dipper Control for Ditching Machines.

In lieu of the means'disclosed in our application, Serial No. 195,928, for swinging the arm 32 with boom 18, there is herein provided a slide mem lar 46 on the boom 18. boom 18 as shown in Fig. 3 of the drawing, and is ladapgdbforthreciprocatgcisln longitudinally of boom 18 as imi y e extensi i o a ton-stem 48 for draulic cylinder 50. ty ms by In this connection, it is manifest that any type of der-piston assembly may be used for all of the hydra the lost motion that becomes necessary when such actu- 1 clear as the following specification progresses.

In the drawing:

Figure l is a side elevational view of a ditcher having slidable boom-supported bucket control means made pursuant to our present invention. V

Fig. 2 is a side elevational view illustrating the posttion of the various parts when the bucket is in a dumpmg position.

Fig. 3 is a detailed, cross-sectional view taken on hne IlI-III of Fig. 1; and 1 Fig. 4 is a fragmentary, detailed, cross-sectional view taken on line IVIV of Fig. 1.

As in our co-pending applicatlon above identified, the ditching assembly hereof is adapted to be mounted upon a tractor shown fragmentarily only in the drawing and designated broadly by the numeral 10. A frame 12 rests directly upon the ground as shown in Figs. 1 and 2 when the apparatus hereof is in use, said frame 12 being operably connected with the power-lift mechanism of tractor 18 for elevation, and therefore, for support by the tractor 18 during transfer from one point of use to another.

Frame 12 has the valving mechanism 14 for controlling various hydraulic motivating means hereinafter to be set forth, so mounted thereon as to be readily accessible to the operator of tractor 18.

A vertical member 16 is carried by the frame 12 for rocontrols hereof, but by way of further exp erence may be had to a novel hydraulic cylinder formmg the subject matter of our co-pending on even date herewith particularly adapted for this use. .lhecylmderSlisjoinedtothebracketSl the stem 48 has connection with the collar ttalfnapllrlgt iinlft It is'nofted in Fig.

on as a pair 0 depending ears which the stem 48 is di The cars habracet a pair of extensions 58on an elonga of link 60. livot pin 54 serves therefore, not only to pgrlgttgly receive the piston stem 48, but the connecting It is apparent that sliding movement of the collar 4 along the longitudinal axis of the boom 18 'upon which It IS slidably mounted, imparts swinging movement to the arm 32 through link 60. Retraction of the stem 48 into the cylinder 58 as controlled from unit 14, moves the collar 46 upwardly along the boom 18 toward the uppermost end of boom 18, thereby swinging arm 32 upwardly and moving the bucket 36 to a dumping position as shown in Fig. 2 of the drawing. .Extension of the stem 48 shifts the collar 46 toward the pivot point 28, thereby imparting a pulling force to the arm 32 through link 60, thereby forcing the bucket 36 into the earth or other material to be handled thereby.

The entire assembly for controlling the bucket 3 be- 7 an elonend of the boom 18, remote.

s pp therefore, extremely powerful as compared with actuation that includes swinging of the hydraulic assembly.

Other advantages resulting from the use of control means of this character will become apparent to those skilled in this field, and therefore, such uses as fairly come within the spirit of this invention as defined by the appended claims, are contemplated hereby.

Having thus described the invention what is claimed as new and desired to be secured by Letters Patent is:

1. In a material hanoiingvmachine, a support; an elon gated boom; means swingably mounting the boom on the support; structure interconnecting the support and the boom for raising and lowering the same; an arm [swingably secured]; pivot means swingably securing the arm to the boom;-a dipper on the arm; a reciprocable member on the boom separate from said structure; [and] means connecting the member and the harm for swinging the dipper as the member is reciprocated, said means comprising a link having pivotal connection with said member and with said arm; and power means interposed between said pivot means and said member and opera'bly interconnecting the boom and the member for reciprocating the latter.-

2. In a material handling machine, an elongated boom; an armswingably secured to the boom; a dipper onthe arm; a, member mounted on the boom for reciprocation along the longitudinal axis thereof; means connecting the member and the arm for swinging the dipper as the thember is reciprocated; and an extensible device interconnecting the member and the boom for reciprocating the memer. s

3. In a material handling machine,' an elongated boom; an arm swingably secured to the boom;'-a dipper on the arm; a member mounted on the boom for reciprocation along'the' longitudinal. axis thereof; means connecting the member and the arm for swinging the dipper as the member is reciprocated; and an extensible device interconnecting the member and the boom for reciprocating the member, said means comprising a link having pivotal connection with said member and with said arm, said device including a hydraulic cylinder having a double acting, reciprocable piston therein.

References Cited in the tile of this patent or the original patent UNITED srA'rEs PATENTS 

